Lubricating axle-box.



J. MGLINTOGK.

LUBRIGATING AXLE BOX.

APPLICATION $11,313 APR.16,1910. RENEWED FEB. a, 1912.

1,023,668. 5 I Patented Apr. 16, 1912.

a SHEETS-SHEET 1.

coLuMnm PLANDGRAPH 43., WASHINGTON \"Iv c.

J. MOLINTOCK.

LUBRIGATING AXLE BOX.

APPLICATION FILED APR.16, 1910.- RENEWED FEB.8,1912. 1 23,668

Patented Apr. 16, 1912. E6.

3 SHEETSSHEET 2.

COLUMBIA FLANOGRAPH CO.,\VASH1NGTON, D. c

J. MOLINTOGK.

LUBRIGATING AXLE BOX.

APPLICATION FILED APRJG, 1910. RENEWED FEB. 13, 1912.

1,023,668. 1 Patented Apr. 16, 1912.

A 3 SHEETS-SHEET a.

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COLUMBIA PLANOGRAPI! cu.,\\'.\?.mNo'roN. 1).c.

IINITED TATES PATENT @FFIfiE.

LUBRIGATING AXLE-BOX.

Specification of Letters Patent.

Patented Apr. 16, 1912.

Application filed April 16, 1910, Serial No. 555,963. Renewed February 8, 1912. Serial No. 676,443.

To all whom it may concern:

Be it known that I, JOHN MCLINTOGK, a subject of the King of Great Britain and Ireland, and a resident of Glasgow, Scotland, have invented new and useful Improvements in Lubricating Axle-Boxes, of which the following is a specification.

This invention has reference to and comprises improvements in lubricating axle boxes for railway and other vehicles and the like, and consists of improvements in the construction of these, more particularly of the class which are fitted with an upper bearing brass only, and means for lubrication by a block of lubricant held against the axle by spring pressure, the springs being seated in a lower compartment below the bot-tom of the axle box and opening into the axle box proper.

Now the present improvements are chiefly distinguished by the fact that the spring pressed plate supporting the block of lubricant can descend into the lower compartment below the bottom of the axle box which has not been the case in previous constructions and one advantage arising from this is the possibility of using a deep block of lubricant extending down into the lower compartment; other subsidiary features com prise a guide or casing for the plate and block of lubricant and an improved combination of theseand other parts for effecting lubrication in a more efficient manner than heretofore.

In order that my invention and the manner of carrying same into elfect or practice may be properly understood, I have hereunto appended three sheets of explanatory drawings in which- Figure 1 on Sheet 1 is a side sectional elevation and Fig. 2 a corresponding sectional plan taken on the line 2-4 in Fig. 1, but not showing the axle. Fig. 3 on Sheet 2 is a sectional end view taken on the line 33 in Fig. 1 while Fig. 4 is a plan and Fig. 5 on Sheet 3 is an outer end view all illustrating an axle box constructed in accordance with my improvements. Fig. 6 is a sectional view showing a modification of my invention.

Referring to these drawings. In carrying this invention into effect or practice the axle box a is much of the usual form in its upper part containing the hearing brass Z) and axle 0 but according to my improvements it is extended downward forming a compartment (Z of less width than the upper part. IVithin this lower compartment a plate 6 is mounted within a liner or box 2', a spring 9 being held in place by projections or guides j on the bottom of the plate 6 and of the box 2' to sustain the plate 6 at its full height when unloaded, the strength of the spring g is just sufiicient to keep the block it of lubricant in touch with the axle 0 when it is placed on the plate 6 without any severe pressure being exercised and to raise the plate and block of lubricant as the latter is worn away. Openings are formed in the sides of the box 2' to form a cage so that the block of lubricant may be seen therethrough.

In the modification Fig. 6, I have shown the plate 0 mounted on a spindle f which passes through thebottom of the compartment and which is formed with a head at its lower end. In this case I preferably use two springs 9, one in front and one behind the spindle f. The spindle f, by passing through the bottom of the chamber, acts as a tell-tale to show when the block of lubricant has been used up.

The bottom cap (1 of the lower chamber carrying the plate 6, spindle f and springs 9, may be formed as a sliding cover or, as shown, be secured by bolts and nuts and oscillating doors may be fitted to the sides, or to the front of the axle box as illustrated by Figs. 1, 2 and 5 of the drawings.

As shown in Fig. 5 the door 76 swivels on the pin Z and is secured by the nut m which is screwed up when the door is shut. hen it is desired to open the door to inspect the state of 'the lubricant the nut m is unscrewed and the door is swiveled to one side, the slot a allowing of this motion. A stud pin 0 is inserted in the door to facilitate its oscillation by means of a spanner.

When it is desired to renew the lubricant the bottom cover or cap 9 is removed when the liner 2' and plate 6 can be lowered.

hat I do claim as my invention, and desire to secure by Letters Patent, is

A lubricating box for axles having a main chamber into which the axle extends, said chamber being considerably deeper than the diameter of the axle, a bearing block mountedat the top of the said chamber and against which the axle contacts, said box having a depending portion forming a secondary chamber, said secondary chamber being in direct alinementwith the axis of the axle and in connnunication with the main chamber, a perforated casing fitting the secondary chamber and extending through the main chamber to a point adjacent the axle, a plate for supporting a block of lubricant and adapted to slide Within the casing, a detachable closure for the bottom of the secondary chamber and acting as a retainer for the said casing, means acting upon the said plate for keeping the block of lubricant in contact Witli the axle and a closure for the outer end of the main chamber, said closure being pivoted to permit View of the block of lubricant through the main cham her and the perforations of the casing.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

JOHN MOLINTOCK.

WVitnesses Roman '1 OLEGHORN THOMSON, THOMAS BENNIE BRowNLm.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

